Audio Amplifier Board, Yeeco 2.1 Channel 2x80W+100W Digital Power Amplifier Board DC 12-26V 15V 19V 24V Car Audio Stereo AMP Module with Volume Knob and 3.5MM Audio Input for Audio System DIY Speakers

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Feature

Speaker amplifier board DC 12-26V input, recommend 24V for the best performance; Output load is 4-8, universal and can perform volume and sound quality well; Amplifier circuit board with 14-100KHz frequency response
Stereo amp board with 80W left and right channel audio output and 100W super bass channel audio output; Stereo amp board with 3.5mm Audio input jack and XH2.54-3 audio input terminal, convenient to connect with mobile phone, computer and other audio electronics
2.1 Power amplifier board with stereo volume knob, subwoofer volume knob and total volume knob, you can separately adjust each volume for your favourite sound effect
Two chips stereo audio amp, one for left and right channel power amplify and one for high quality subwoofer drive; High efficient digital amplifier board, up to 90% efficiency and high fidelity
DIY amplifier board wonderful to be DIY bookshelf loudspeaker, car audio components, home theater audio system and more

Description

Product information:
Power supply: DC 12-26V
Output power: 80W*2 100W*1(Subwoofer)
Output load: 4-8
Respond range: 14-100KHz
SNR: 100db
Channel amount: 3 (left+right+subwoofer)
Switch frequency: 1.2MHz
Weight: 126g
Size: 116mm*74mm*29mm (length * width * height)

Please note that noise will happen in these situation:
(1)Hardware problem:
-Power supply is not sufficient or not stable;
-Using switch power supply
-Using transformer as power supply and without shield & isolation; wdo not avoid interference
-Local at the environment with electromagnetic interference
-Audio input has its own problem
(2)Software problem:
-Audio driver setting
-Music Player effects setting

Solution:
(1)Hardware problem-> The power supply should not be placed too close to the amplifier board in order to avoid electromagnetic interference. It is better to use high quality power supply which offers stable power. If you use power transformer, using an iron sheet to cover the transformer is highly recommended.
(2)Software problem-> When you connect the amplifier to telephone or computer, you can turn off the special effects software or sound card driver effects settings. Using the software after making sure they will not take effect on the sound effect.

Package:
1*Power Amplifier